I have a 2010 FX4 with stock 20 inch rims and Pirelli Scorpion ATR's. Without a level can I put 17 inch wheels and 295/70/17's on it?? Looking for a more aggressive tire.

 

Just make sure they are 6x135mm bolt pattern's and test fit one to see if they clear the brake's. Those 295's are 33.5x11.8 and should clear at stock height. I ran 295x70x17 Toyo MT's on my '04 F-150 and loved the way they looked and rode.